Fountain pen



29, 1.929. I F c. DEU ET AL FOUNTAIN -PEN Filed June i 1928 l I. www

Patented Oct. 29, 1929 UNi'rED, STATES PATENT ofi-Fica `FRANK O. DELIAND WILLIAM n. GRosECLosE, on CHICAGO; ILLINOIS, vrAssiefNoiascioAUTOPOINT COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION or ILLINOIS j`FOUNTAIN' PEN f Application led June 4, 1928. Serial y1\To.` 282,7`/9:4.'y

Our invention relates to fountain pens and more particularly to Va novelpressure bar construction therefor and is an improvement over our priorco-pending Vapplication Serial No. 237,7 56, filed December 5, 1927.

An object of our invention is to provide a fountain pen havinglthe'pressure bar and associated mechanism of such arrangement andconstruction as to avoid the common objecvv tions now present. Theuser'of fountain'pens frequently finds a blot on his paper as the resultof moving the pen too rapidly above the paper, or setting the pen downroughly. The leakage of pens'in this way is generally caused by reasonof the weight ofthe pressure bar mechanism on the ink sack. Obviouslyslight Amovement of the pen will impart amomentum to the most fragilepressure bar, with the aforementioned result. An '-29 object therefore,of "our invention is Vto so lock the entire pressure bar mechanism thatsuch annoyances will be avoided.

A further object'of" our invention is to provide a pressure mechanismthat will, atall 2.3 times, compress the ink sack to its fullest eX-tent, so that, regardless of the age'of the pen,

f' in closed position.

it will always contain thesame amount o ink. Y; A further object of ourinvention'is to eliminate the unsightly pressure barl lever from theside ofV the barrel. .levers so located are very'apt to become loose,and` if caught, will openv and dischargethe contents of the pen. Afurtherobjection to such a practice, is that the opening provided forthe filling lever frequently* is vof sucha size as to admit foreignmatter and dust, resulting in added friction andiinj'ury to the sackwithin the barrel. l i

'4o-3 These and other objects'will appear'by study of thev followingdescription of thev drawings, in which- Fig. 1 is a view, partly insection'show#v ing a fountain pen constructed in accordance with ourinvention; i

Fig. 2 is a viewv at right angles to that ofFig. 1, partly in section; y,y f

Fig. 3 is a sectional viewshowing the ink 5o sack compressed;

Pressure; barl Fig Lisa plan view of the pressure bar andassociatedparts; 1 Y L .'Fig. 5 Vis a longitudinal sectionalviewA of the pressurebar andassociated parts;

Fig. 6 is, a cross sectional view taken on the line 6-6 of Fig. 3; f jFig. 7 is a sectional end view taken, on the line 7 7 of-Fig. l v. Byreferring to the'drawings, it-will be seen that we have provided abarrel 10,:compressible ink sack 11, plug 12, pen 13 and hood'll. fLocated withinl the barrel -is thesack compressing means, including thevchannel shaped pressure bar 15, short fulcrumy lever 16, pivoted. to thepressure bar at some suitable point asat 17. z Pivoted to the lever-16at 16a isv the link 18 of suitable length. The link 18A and pressurevbar15 are both pivotallysecured at 15a`and 18a'to the bellcrank19 which ispivotally secured to the upper end of ther'pen barrel by a pin 20. Thepressurebar" is .slightlyy deformed at its upper endto bring the pivotV15a belowthe plane thereof for a purpose later to be described. lThescrew cap 21 is provided as a .lock for' the bellcrank j It is fthusseen thatzthe pressure bar and associated parts are'secured to thebarrel byv only"onepin,.20. Thus the entire movement .of theV mechanismis ,relative to the pin, 20.v f v Theoperation KVof the fillingmeohanism is' better understood by a description in view ofthe apparatushere disclosed: The apparatus isshown. in locked position, closed, inFig. 1. In this position'thelfulcrum lever y and link lie ina continuousstraight line, enclosed by the channels of the pressure barI The pivot15aA being below the channel leaves 90jy the channel free tol receivethe link 18. The j tighter ithe bellorank is locked down, the v fartherup the pivot 15a'will be forced, thus forcing the pressure bar, fulcrumlever and link tight up against the barrel, thereby avoiding anypressurev against the sack in the handling. Y

lWhen the sack is to be compressed, the cap 21 is removed and thebellcrank rocked upl wards,.'thus pushing the linkl 18 forward. 100

This movement raises the fulcrum lever 16 which bears against the'wallof the barrel for a short distance, thus forcing the pressure bardownward against the sack, When the bellcrank is pushed upwards to itslimit, the fulcrum lever will have passed its center, and the sack willbe kept down without holding the bellcrank, as shown in Fig. 3. `To re`leasethe sack and permit the entrancesof ink,

the bellcrank is simply pushedv down, andl Y may be made in the devicehere disclosed and we do not wish to be limited except las indicated inthe appended claims.

We claim-v: l

l. Thecombination with a pen barrel and ink sack of sack compressingmeans comprising a pressure bar, a floating fulcrum arm having aconnection to the lower end of the bar and a sliding contact with theinside of the barrel, a crank connectedto the bar and pivoted to thebarrel, a link connecting the Ycrank and the fulcrum arm, .and anoperating arm on the crank adapted toproject outside of the end of thebarrel. f .2. The combination with alpen barrel and yink sack'of sackcompressing means comprising a pressure bar., arfloating fulcrum armhaving alconnection to the lower end of the bar and a sliding contactwith the inside ofthe barrel, a crank connectedto thebarl andpivoted tothe barrel at apointbeyond theupper end ofltheink sack, a link iconnecting the crank iand the fulcrumarm, an operating armen the crankadapted to project outside of therend of the barrel, and ascrewvoap'for-lockingsaid vcrank in closed position.

3f Ina Vfountain pen, the combination with a barrel, a cap, a', pen anda' collapsible'ink sack in saidj barrel, of means for compressing saidsack, said means'. comprising a .pressure Vbar `contacting said inkvsack substantially `the length thereof, a fulcrum lever secured to saidpressure bar between the ends thereof, alink connected toy the free endofsaid fulcrum. lever andi Aa bellcrank,- said `bellcrank vbeinglpivoted--to' the/end of-Said barrel and operatively.connected. to saidpressure` bar and link.

'4. .In af :fountainf pe n,vthe combination with a barrel, a cap, a penand a collapsible ink sack in'fsaid barrel, of means for compressingsaid sack., said means comprising a .pressure bar vcontacting said inksadksubstantiallythe length thereof, a fulcrum lever secured to saidpressure bar between the ends thereof, a link connected to the free endof said fulcrum lever, a bellcrank, said bellcrank being pivoted to theend of said barrel and operatively connected to said pressure bar andlink, anda screw cap for locking. said belll crank in closed position. K5.111 a deviceof the classl described, the, combination of a penbarrel,'a compressibleV ink sack therein, and means for compressing Saidsack, which consists of a pressure bar, ua fulcrum lever attachedthereto between the ends thereof,an operating link, connected to saidfulcrum lever, at the free end thereof, and a bellcrank, said bellcrankbeing pivoted to the end of said barrel and operatively connected vtosaid pressure bar and link, the free end of said fulcrum levercontacting the wall of said barrel as a bearing surface.

6.. In a device of the class described the combination of a pen` barrelbeing open at one end and adapted'to receive a pen plug, and

having a cross slot in the other end, a compressible ink sack disposedin ksaid barrel, ay pressure bar restingl on. said sacksubstantiallyvthe length thereof, a fulcrum'lever` one en'd'of which issecured to said pressure bar,

the free end of Vwhich is adapted to contact thc wall of said barrel asa bearing surface, a link secured to said fulcrum lever bef tween theends therof, and a bellcrank, Said bellcrank being received in theslot'in the .closed end of said barrelV and adapted to-,be

supported on a pivot therein, .and to have operative'connectionwith-said link andsaid pressure bar. Y

k7. In a device. of` theclass` described the combination Vof a penbarrel being yopen at one end and adaptedto recive a pen ,plug,a'ndhaving a'rcrossslot in the other end, a com-V pressible inksack*disposed in saidk barrel, a pressure bar resting on said sacksubstantially the length thereof, a fulcrum-lever, one end of which issecured to said pressure bar, and

the free end v `of which is adapted to ,contact the Wall-fof said barrelas a bearing surface,".

a link secured to said fulcrum leverbetween the ends thereof, and abellcrank,.said bellcra-nk *beingv received in the vslot'fi'n` theclosed end vof saidbarrel andv adapted to be 'sup-',- ported' yon va:pivot therein, and-:to have voperal tive CQnrrleCtonwith saidlinkandsaidpres-v sure bar, said bellcrank beingoperable from the outsidel ofsaid barrel.

A 8. In adeviceof the class described'thecombination of a pen barrel Vbeing openy atl one Vend and 'adapted to receive a pen plug, and

having across slot in the other end, a compressible ink sack disposedinsaid barrel, a pressure bar resting on said sack substantially thelength't-h'ereof, affulcru'm lever, one endof which is secured to'saidvpressure baryandj the free 'end' of which is adapted -to -contactthewall of said barrel as a bearing surface, a

link secured to said fulcruin lever between the ends thereof, abellcrank, said bellcrank being received in the slot in the closed endof said barrel and adapted to be supported on a pivot therein, and tohave operative connec- Y tion With said link and said pressure bar, saidbellcrank being operable from the outside of said barrel, and a screwcap adapted to lock said bellcrank in a closed position.

9. In combination, a barrel having an open upper end, and ink sack, apressure bar, a floating lever connected at one end to the pressure bar,and having a sliding fulcrum on the inside of the barrel, a bellcrankpivoted in said open end of the barrel, and having an operating armproject-ing beyond said open end, said pressure bar being pivoted to onearm of said bell crank, and a link connecting the ulcruln end of saidfloating lever to the other Varm of the bell crank, the bell crank beingso positioned that the pivot points of the link and bar on the bellcrank arms are substantially in line With each other and With thelongitudinal axis of the barrel when the sack is in inflated position,whereby on oscillation of the bell crank, the link is caused to travel asubstantial distance longitudinally of the barrel and the bar only arelatively short distance longitudinally.

In testimony whereof We have atxed our signatures.

FRANK C. DELI. WILLIAM D. GROSECLOSE.

